Reprogrammable and reconfigurable mechanical computing metastructures with stable and high-density memory
arxiv(2024)
摘要
Previous mechanical meta-structures used for mechanical memory storage,
computing and information processing are severely constrained by low
information density and/or non-robust structural stiffness to stably protect
the maintained information. To address these challenges, we proposed a novel
reprogrammable multifunctional mechanical metastructure made by an
unprecedented building block based on kinematic mechanism. The proposed
meta-structure can achieve all abovementioned functionalities accompanying with
high information density and promising structural stability. We attribute all
these merits to the intrinsic kinematic bifurcations of structural units, which
enable the periodic meta-structure with additional and independently deformable
bi-stable structural segments, and multi-layered deformed configurations to
significantly enlarge the available information bits. We validate the stable
information storage are originated from the compatible deformations of local
structural segments before and after bifurcations. We illustrated the stored
information can be feasibly reprogrammed by magnetic poles. Our design strategy
paves new way for creating novel functional mechanical metastuctures.
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